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Php backup database code (generate word, excel, json, xml, SQL)

Source: Internet
Author: User
Tags fread import database
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Single Table backup
Code: Copy codeThe Code is as follows: <? Php
Class Db
{
Var $ conn;

Function Db ($ host = "localhost", $ user = "root", $ pass = "root", $ db = "test ")
{
If (! $ This-> conn = mysql_connect ($ host, $ user, $ pass ))
Die ("can't connect to mysql sever ");
Mysql_select_db ($ db, $ this-> conn );
Mysql_query ("set names 'utf-8 '");
}

Function execute ($ SQL)
{
Return mysql_query ($ SQL, $ this-> conn );
}

Function findCount ($ SQL)
{
$ Result = $ this-> execute ($ SQL );
Return mysql_num_rows ($ result );
}

Function findBySql ($ SQL)
{
$ Array = array ();
$ Result = mysql_query ($ SQL );
$ I = 0;
While ($ row = mysql_fetch_assoc ($ result ))
{
$ Array [$ I] = $ row;
$ I ++;
}
Return $ array;
}

// Several situations of $ con
// NULL: All records are returned.
// Array: eg. array ('id' => '1') returns the record with id = 1
// String: eg. 'id = 1' returns the record with id = 1
Function toExtJson ($ table, $ start = "0", $ limit = "10", $ cons = "")
{
$ SQL = $ this-> generateSql ($ table, $ cons );
$ TotalNum = $ this-> findCount ($ SQL );
$ Result = $ this-> findBySql ($ SQL. "LIMIT". $ start. ",". $ limit );
$ ResultNum = count ($ result); // number of current results
$ Str = "";
$ Str. = "{";
$ Str. = "'totalcount': '$ totalnum ',";
$ Str. = "'rows ':";
$ Str. = "[";
For ($ I = 0; $ I <$ resultNum; $ I ++ ){
$ Str. = "{";
$ Count = count ($ result [$ I]);
$ J = 1;
Foreach ($ result [$ I] as $ key => $ val)
{
If ($ j <$ count)
{
$ Str. = "'". $ key. "': '". $ val ."',";
}
Elseif ($ j = $ count)
{
$ Str. = "'". $ key. "': '". $ val ."'";
}
$ J ++;
}

$ Str. = "}";
If ($ I! =$ ResultNum-1 ){
$ Str. = ",";
}
}
$ Str. = "]";
$ Str. = "}";
Return $ str;
}

Function generateSql ($ table, $ cons)
{
$ SQL = ""; // SQL Condition
$ SQL = "select * from". $ table;
If ($ cons! = "")
{
If (is_array ($ cons ))
{
$ K = 0;
Foreach ($ cons as $ key => $ val)
{
If ($ k = 0)
{
$ SQL. = "where '";
$ SQL. = $ key;
$ SQL. = "'= '";
$ SQL. = $ val ."'";
} Else
{
$ SQL. = "and '";
$ SQL. = $ key;
$ SQL. = "'= '";
$ SQL. = $ val ."'";
}
$ K ++;
}
} Else
{
$ SQL. = "where". $ cons;
}
}
Return $ SQL;
}

Function toExtXml ($ table, $ start = "0", $ limit = "10", $ cons = "")
{
$ SQL = $ this-> generateSql ($ table, $ cons );
$ TotalNum = $ this-> findCount ($ SQL );
$ Result = $ this-> findBySql ($ SQL. "LIMIT". $ start. ",". $ limit );
$ ResultNum = count ($ result); // number of current results
Header ("Content-Type: text/xml ");
$ Xml = "<? Xml version = \ "1.0 \" encoding = \ "UTF-8 \"?> \ N ";
$ Xml. = "<xml> \ n ";
$ Xml. = "\ t <totalCount>". $ totalNum. "</totalCount> \ n ";
$ Xml. = "\ t <items> \ n ";
For ($ I = 0; $ I <$ resultNum; $ I ++ ){
$ Xml. = "\ t <item> \ n ";
Foreach ($ result [$ I] as $ key => $ val)
$ Xml. = "\ t <". $ key. ">". $ val. "</". $ key. "> \ n ";
$ Xml. = "\ t </item> \ n ";
}
$ Xml. = "\ t </items> \ n ";
$ Xml. = "</xml> \ n ";
Return $ xml;
}

// Output the word Table
Function toWord ($ table, $ mapping, $ fileName)
{
Header ('content-type: application/doc ');
Header ('content-Disposition: attachment; filename = "'.w.filename.'.doc "');
Echo 'Xmlns: w = "urn: schemas-microsoft-com: office: word"
Xmlns = "[url = http://www.w3.org/TR/REC-html40]http://www.w3.org/TR/REC-html40[/url]">
<Head>
<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"/>
<Title> '. $ fileName.' </title>
</Head>
<Body> ';
Echo '<table border = 1> <tr> ';
If (is_array ($ mapping ))
{
Foreach ($ mapping as $ key => $ val)
Echo '<td>'. $ val. '</td> ';
}
Echo '</tr> ';
$ Results = $ this-> findBySql ('select * from'. $ table );
Foreach ($ results as $ result)
{
Echo '<tr> ';
Foreach ($ result as $ key => $ val)
Echo '<td>'. $ val. '</td> ';
Echo '</tr> ';
}
Echo '</table> ';
Echo '</body> ';
Echo '}

Function toExcel ($ table, $ mapping, $ fileName)
{
Header ("Content-type: application/vnd. ms-excel ");
Header ("Content-Disposition: filename =". $ fileName. ". xls ");
Echo 'Xmlns: x = "urn: schemas-microsoft-com: office: excel"
Xmlns = "[url = http://www.w3.org/TR/REC-html40]http://www.w3.org/TR/REC-html40[/url]">
<Head>
<Meta http-equiv = "expires" content = "Mon, 06 Jan 1999 00:00:01 GMT">
<Meta http-equiv = Content-Type content = "text/html; charset = iso-8859-1">
<! -- [If gte mso 9]> <xml>
<X: ExcelWorkbook>
<X: ExcelWorksheets>
<X: ExcelWorksheet>
<X: Name> </x: Name>
<X: WorksheetOptions>
<X: DisplayGridlines/>
</X: WorksheetOptions>
</X: ExcelWorksheet>
</X: ExcelWorksheets>
</X: ExcelWorkbook>
</Xml> <! [Endif] -->
</Head>
<Body link = blue vlink = purple leftmargin = 0 topmargin = 0> ';
Echo '<table width = "100%" border = "0" cellspacing = "0" cellpadding = "0"> ';
Echo '<tr> ';
If (is_array ($ mapping ))
{
Foreach ($ mapping as $ key => $ val)
Echo '<td>'. $ val. '</td> ';
}
Echo '</tr> ';
$ Results = $ this-> findBySql ('select * from'. $ table );
Foreach ($ results as $ result)
{
Echo '<tr> ';
Foreach ($ result as $ key => $ val)
Echo '<td>'. $ val. '</td> ';
Echo '</tr> ';
}
Echo '</table> ';
Echo '</body> ';
Echo '}

Function Backup ($ table)
{
If (is_array ($ table ))
{
$ Str = "";
Foreach ($ table as $ tab)
$ Str. = $ this-> get_table_content ($ tab );
Return $ str;
} Else {
Return $ this-> get_table_content ($ table );
}
}

Function Backuptofile ($ table, $ file)
{
Header ("Content-disposition: filename = $ file. SQL"); // saved file name
Header ("Content-type: application/octetstream ");
Header ("Pragma: no-cache ");
Header ("Expires: 0 ");
If (is_array ($ table ))
{
$ Str = "";
Foreach ($ table as $ tab)
$ Str. = $ this-> get_table_content ($ tab );
Echo $ str;
} Else {
Echo $ this-> get_table_content ($ table );
}
}

Function Restore ($ table, $ file = "", $ content = "")
{
// Exclude the case where file and content are empty or none are empty
If ($ file = "" & $ content = "") | ($ file! = "" & $ Content! = ""))
Echo "parameter error ";
$ This-> truncate ($ table );
If ($ file! = "")
{
If ($ this-> RestoreFromFile ($ file ))
Return true;
Else
Return false;
}
If ($ content! = "")
{
If ($ this-> RestoreFromContent ($ content ))
Return true;
Else
Return false;
}
}

// Clear the table to restore Data
Function truncate ($ table)
{
If (is_array ($ table ))
{
$ Str = "";
Foreach ($ table as $ tab)
$ This-> execute ("truncate table $ tab ");
} Else {
$ This-> execute ("truncate table $ table ");
}
}

Function get_table_content ($ table)
{
$ Results = $ this-> findBySql ("select * from $ table ");
$ Temp = "";
$ Crlf = "<br> ";
Foreach ($ results as $ result)
{

/*(";
Foreach ($ result as $ key => $ val)
{
$ Schema_insert. = "'". $ key ."',";
}
$ Schema_insert = ereg_replace (", $", "", $ schema_insert );
$ Schema_insert. = ")
*/
$ Schema_insert = "insert into $ table VALUES (";
Foreach ($ result as $ key => $ val)
{
If ($ val! = "")
$ Schema_insert. = "'". addslashes ($ val )."',";
Else
$ Schema_insert. = "NULL ,";
}
$ Schema_insert = ereg_replace (", $", "", $ schema_insert );
$ Schema_insert. = "); $ crlf ";
$ Temp = $ temp. $ schema_insert;
}
Return $ temp;
}

Function RestoreFromFile ($ file ){
If (false! ==( $ Fp = fopen ($ file, 'R '))){
$ SQL _queries = trim (fread ($ fp, filesize ($ file )));
$ This-> splitMySqlFile ($ pieces, $ SQL _queries );
Foreach ($ pieces as $ query ){
If (! $ This-> execute (trim ($ query )))
Return false;
}
Return true;
}
Return false;
}

Function RestoreFromContent ($ content)
{
$ Content = trim ($ content );
$ This-> splitMySqlFile ($ pieces, $ content );
Foreach ($ pieces as $ query ){
If (! $ This-> execute (trim ($ query )))
Return false;
}
Return true;
}

Function splitMySqlFile (& $ ret, $ SQL)
{
$ SQL = trim ($ SQL );
$ SQL = split (';', $ SQL );
$ Arr = array ();
Foreach ($ SQL as $ sq)
{
If ($ sq! = "");
$ Arr [] = $ sq;
}
$ Ret = $ arr;
Return true;
}
}

$ Db = new db ();

// Generate word
// $ Map = array ('no', 'name', 'email ', 'age ');
// Echo $ db-> toWord ('test', $ map, 'archives ');

// Generate an Excel file
// $ Map = array ('no', 'name', 'email ', 'age ');
// Echo $ db-> toExcel ('test', $ map, 'archives ');

// Generate Xml
// Echo $ db-> toExtXml ('test', 0, 20 );

// Generate Json
// Echo $ db-> toExtJson ('test', 0, 20 );

// Backup
// Echo $ db-> Backuptofile ('test', 'backup ');
?>

Full table backupCopy codeThe Code is as follows: $ link = mysql_connect (DB_HOST, DB_USER, DB_PASS );
$ Tables = mysql_list_tables (DB_NAME );
$ Cachetables = array (); $ tableselected = array ();
While ($ table = mysql_fetch_row ($ tables ))
{
$ Cachetables [$ table [0] = $ table [0];
$ Tableselected [$ table [0] = 1;
}
$ Table = $ cachetables;
$ Filename = DB_NAME. "_". date ("Y_m_d_H_ I _s"). ". SQL ";
$ Path = "SQL/". $ filename;
$ Filehandle = fopen ($ path, "w ");
$ Result = mysql_query ("SHOW tables ");
While ($ currow = mysql_fetch_array ($ result ))
{
If (isset ($ table [$ currow [0])
{
Sqldumptable ($ currow [0], $ filehandle );
Fwrite ($ filehandle, "\ n ");
}
}
Fclose ($ filehandle );
$ Update_data = array ('filename' => $ filename, 'postdate' => mktime ());
$ Db-> insert ('backup _ db', $ update_data );
// Data dump functions
Function sqldumptable ($ table, $ fp = 0)
{
$ Tabledump = "drop table if exists". $ table. "; \ n ";
$ Result = mysql_fetch_array (mysql_query ("show create table". $ table ));
// Echo "show create table $ table ";
$ Tabledump. = $ result [1]. "; \ r \ n ";
If ($ fp ){
Fwrite ($ fp, $ tabledump );
} Else {
Echo $ tabledump;
}
// Get data
$ Rows = mysql_query ("SELECT * FROM". $ table );
// $ Numfields = $ DB-> num_fields ($ rows );
$ Numfields = mysql_num_fields ($ rows );
While ($ row = mysql_fetch_array ($ rows )){
$ Tabledump = "insert into". $ table. "VALUES (";
$ Fieldcounter =-1;
$ Firstfield = 1;
// Get each field's data
While (++ $ fieldcounter <$ numfields ){
If (! $ Firstfield ){
$ Tabledump. = ",";
} Else {
$ Firstfield = 0;
}
If (! Isset ($ row [$ fieldcounter]) {
$ Tabledump. = "NULL ";
} Else {
$ Tabledump. = "'". mysql_escape_string ($ row [$ fieldcounter]). "'";
}
}
$ Tabledump. = "); \ n ";
If ($ fp ){
Fwrite ($ fp, $ tabledump );
} Else {
Echo $ tabledump;
}
}
Mysql_free_result ($ rows );
}

Import Database
Copy codeThe Code is as follows: <? Php
/************
*
PHP import. SQL File
Running version: php5, select when using php4
Author: panxp
Mail: coolpan123@gmail.com
*
*************/
$ File_dir = dirname (_ FILE __);
$ File_name = "2010-05-09-bak. SQL ";
$ Conn = mysql_connect (DB_HOST, DB_USER, DB_PASS );
Mysql_select_db (DB_NAME, $ conn );
/** PHP5 version **/
$ Get_ SQL _data = file_get_contents ($ file_name, $ file_dir );
/**
* PHP4 version
If (file_exists ($ file_dir. "/". $ file_name ))
{
$ Get_ SQL _data = fopen ($ file_dir. "/". $ file_name, "r ");
If (! $ Get_ SQL _data)
{
Echo "file cannot be opened ";
}
Else
{
$ Get_ SQL _data = fread ($ get_ SQL _data, filesize ($ file_dir. "/". $ file_name ));
}
}
***/
$ Explode = explode (";", $ get_ SQL _data );
$ Cnt = count ($ explode );
For ($ I = 0; $ I <$ cnt; $ I ++)
{
$ SQL = $ explode [$ I];
$ Result = mysql_query ($ SQL );
Mysql_query ("set names 'utf8 '");
If ($ result ){
Echo "success:". $ I. "queries <br> ";
} Else {
Echo "Import failed:". mysql_error ();
}
}
?>

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
generate json php php generate excel generate excel php php generate json file php code to backup mysql database generate xml using php php generate xml

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